Zimbabwe’s government may allow foreign investors to hold controlling stakes in diamond mines on condition that part of their output is reserved for domestic downstream industries.

Removing a limit on foreign ownership would signal to investors that President Emmerson Mnangagwa is serious about his pledge to revive mining, which suffered years of decline under his predecessor Robert Mugabe. The government is targeting diamond production of 12 million carats by 2023, compared with a forecast of 3.5 million carats this year.

The state is considering waiving a requirement that diamond mines be 51 percent owned by domestic investors, Information Minister Mangaliso Ndlovu told reporters Tuesday in the capital, Harare. The southern Africa nation scrapped the rule for most mines last year, but kept the regulations in place for diamond and platinum producers.

“Government may waiver that local ownership threshold subject to a submission of satisfactory submissions and due diligence,” including that gems be submitted to the state-run Diamond Value Management Centre for clearing, sorting and valuation, Ndlovu said. Private companies must also reserve 10 percent of their gems for “local value addition,” he said.